Submission #1261936

#	Time	Username	Problem	Language	Result	Execution time	Memory
1261936		sokratisi	동굴 (IOI13_cave)	C++20	Compilation error	0 ms	0 KiB

cave

#include "cave.h"
#include <bits/stdc++.h>

using namespace std;

set<int> use;
int n;
array<int> s, d;

pair<int, int> bsearch(int i) {
    vector<int> t;
    for (auto u: use) t.push_back(u);

    int cntrl = tryCombination(s);
    if (cntrl == -1) cntrl = n+2;

    int l = 0, r = t.size()-1;
    while(l < r) {
        int m = (l + r) / 2;
        int ts[n];
        for (int i = 0; i < n; i++) ts[i] = s[i];
        for (int i = l; i <= m; i++) {
            ts[t[i]] = 1-ts[t[i]];
        }
        int ans = tryCombination(ts);
        if (ans == -1) ans = n + 2;
        if (cntrl == i && ans > i) r = m;
        else if (cntrl > i && ans == i) r = m;
        else l = m + 1;
    }
    int corpos;
    if (cntrl > i) corpos = s[t[l]];
    else corpos = 1 - s[t[l]];
    return {t[l], corpos};
}

void exploreCave(int x) {
    n = x;
    s.resize(n); d.resize(n);
    s.fill(0);
    for (int i = 0; i < n; i++) use.insert(i);
    for (int i = 0; i < n; i++) {
        pair<int, int> ans = bsearch(i, s);
        use.erase(ans.first);
        s[ans.first] = ans.second;
        d[ans.first] = i;
    }
    answer(s, d);
}

Compilation message (stderr)

cave.cpp:8:10: error: wrong number of template arguments (1, should be 2)
    8 | array<int> s, d;
      |          ^
In file included from /usr/include/c++/11/tuple:39,
                 from /usr/include/c++/11/functional:54,
                 from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13,
                 from /usr/include/c++/11/algorithm:74,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65,
                 from cave.cpp:2:
/usr/include/c++/11/array:95:12: note: provided for 'template<class _Tp, long unsigned int _Nm> struct std::array'
   95 |     struct array
      |            ^~~~~
cave.cpp: In function 'std::pair<int, int> bsearch(int)':
cave.cpp:14:32: error: invalid conversion from 'int' to 'int*' [-fpermissive]
   14 |     int cntrl = tryCombination(s);
      |                                ^
      |                                |
      |                                int
In file included from cave.cpp:1:
cave.h:8:24: note:   initializing argument 1 of 'int tryCombination(int*)'
    8 | int tryCombination(int S[]);
      |                    ~~~~^~~
cave.cpp:21:46: error: invalid types 'int[int]' for array subscript
   21 |         for (int i = 0; i < n; i++) ts[i] = s[i];
      |                                              ^
cave.cpp:32:30: error: invalid types 'int[__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type {aka int}]' for array subscript
   32 |     if (cntrl > i) corpos = s[t[l]];
      |                              ^
cave.cpp:33:24: error: invalid types 'int[__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type {aka int}]' for array subscript
   33 |     else corpos = 1 - s[t[l]];
      |                        ^
cave.cpp: In function 'void exploreCave(int)':
cave.cpp:39:7: error: request for member 'resize' in 's', which is of non-class type 'int'
   39 |     s.resize(n); d.resize(n);
      |       ^~~~~~
cave.cpp:39:20: error: request for member 'resize' in 'd', which is of non-class type 'int'
   39 |     s.resize(n); d.resize(n);
      |                    ^~~~~~
cave.cpp:40:7: error: request for member 'fill' in 's', which is of non-class type 'int'
   40 |     s.fill(0);
      |       ^~~~
cave.cpp:43:37: error: no matching function for call to 'bsearch(int&, int&)'
   43 |         pair<int, int> ans = bsearch(i, s);
      |                              ~~~~~~~^~~~~~
In file included from /usr/include/stdlib.h:833,
                 from /usr/include/c++/11/bits/std_abs.h:38,
                 from /usr/include/c++/11/cmath:47,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
                 from cave.cpp:2:
/usr/include/x86_64-linux-gnu/bits/stdlib-bsearch.h:20:1: note: candidate: 'void* bsearch(const void*, const void*, size_t, size_t, __compar_fn_t)'
   20 | bsearch (const void *__key, const void *__base, size_t __nmemb, size_t __size,
      | ^~~~~~~
/usr/include/x86_64-linux-gnu/bits/stdlib-bsearch.h:20:1: note:   candidate expects 5 arguments, 2 provided
cave.cpp:10:16: note: candidate: 'std::pair<int, int> bsearch(int)'
   10 | pair<int, int> bsearch(int i) {
      |                ^~~~~~~
cave.cpp:10:16: note:   candidate expects 1 argument, 2 provided
cave.cpp:45:10: error: invalid types 'int[int]' for array subscript
   45 |         s[ans.first] = ans.second;
      |          ^
cave.cpp:46:10: error: invalid types 'int[int]' for array subscript
   46 |         d[ans.first] = i;
      |          ^
cave.cpp:48:12: error: invalid conversion from 'int' to 'int*' [-fpermissive]
   48 |     answer(s, d);
      |            ^
      |            |
      |            int
In file included from cave.cpp:1:
cave.h:9:17: note:   initializing argument 1 of 'void answer(int*, int*)'
    9 | void answer(int S[], int D[]);
      |             ~~~~^~~
cave.cpp:48:15: error: invalid conversion from 'int' to 'int*' [-fpermissive]
   48 |     answer(s, d);
      |               ^
      |               |
      |               int
In file included from cave.cpp:1:
cave.h:9:26: note:   initializing argument 2 of 'void answer(int*, int*)'
    9 | void answer(int S[], int D[]);
      |                      ~~~~^~~